Plant tub



FIG. 1 is a front and elevational view of a plant tub showing my newdesign.

FIG. 2 is a perspective view thereof.

FIG. 3 is a top plan view thereof, shown at an enlarged scale; and,

FIG. 4 is a bottom plan view thereof, shown at an enlarged scale.

The broken line showing in FIG. 3 is for illustrative purposes only andforms no part of the claimed design.

The ornamental design for a “plant tub,” as shown and described.